一类系统离散谱的上界

2018-05-14 16:31吴平
宁波职业技术学院学报 2018年3期

吴平

摘 要: 对式(1)的谱进行了研究,得到了谱的上界不等式。文中采用的分部积分、Rayleigh定理和不等式估计等数学方法。

关键词: 一类系统; 离散谱; 上界估计

中图分类号: O 175.9 文献标志码: A 文章编号: 1671-2153(2018)03-0096-04

Abstract: This paper considers estimates for discrete spectrum of a system .The inequality of the upper bound of the (n+1)th eigenvalue is estimated from the first n eigenvalues by using integral, Reyleigh theorem and inequality estimation. The estimate coefficients do not depend on the measure of the domain in which the problem is concerned.

Keywords: a system; discrete spectrum; upper bound; estimate

(責任编辑:徐兴华)